22144299 has 4 divisors (see below), whose sum is σ = 29525736. Its totient is φ = 14762864.

The previous prime is 22144289. The next prime is 22144303. The reversal of 22144299 is 99244122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22144299 - 2⁵ = 22144267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22144219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3690714 + ... + 3690719.

It is an arithmetic number, because the mean of its divisors is an integer number (7381434).

Almost surely, 2^22144299 is an apocalyptic number.

22144299 is a deficient number, since it is larger than the sum of its proper divisors (7381437).

22144299 is an equidigital number, since it uses as much as digits as its factorization.

22144299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381436.

The product of its digits is 10368, while the sum is 33.

The square root of 22144299 is about 4705.7729439487. The cubic root of 22144299 is about 280.8152219612.

The spelling of 22144299 in words is "twenty-two million, one hundred forty-four thousand, two hundred ninety-nine".